telescopic oil cylinder 伸缩油缸 telescopic cylinder group 伸缩气缸组 constant extension speed telescopic cylinder 等速外伸的伸缩缸 ..
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在机架横 梁的大致中间部位安装有倾斜向上的伸缩油缸。
The approximate central part of the frame crossbeam is provided with an inclined upward expansion oil cylinder.
吊臂的伸缩是通过伸缩油缸和钢丝绳进行，各伸缩臂同步伸缩。
Telescoping of the boom is carried out through telescoping cylinder and steel cable, and all booms telescope simultaneously.
本实用新型是一种结构简单紧凑、可靠性好的单伸缩油缸多节臂伸缩控制装置。
The utility model is a multiple-level arm expansion control device of a single-telescopic cylinder with simple and compact structure and good reliability.
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